Sylvania



M. LACHMAN.

METAL WHEEL.

APPLICATION FILED APR. 30; I921.

2 mm mm mm IE 6 2% MM @I. A E d2 6 m I H R m U P W M. LACHMAN. METALWHEEL.

APPLICATION HLED APR. 30, 1921. 1,426,881. Patented g. 22, 1922.

2 SHEETS-SHEET 2.

MA URIGE LACHMAN $5 61 b044$3 UNITED STATES PATENT OFFICE.

MAURICE LACI-IMAN, OF NEW YORK, N. Y., ASSIGNOR TO BETHLEHEM STEEL COMPANY, OF BETHLEHEM, PENNSYLVANIA, A CORPORATION OF PENN- SYLVANIA.

Application filed'April 30,

To all whom it may concern:

Be it knownthat I, MAURICE LACHMAN, a citizen of the United States, and a resident of New York, in the county of New York and, State of New York, have invented ce rtain new and useful Improvements in Metal I/V heels, of which the following is a specification.

' Myinvention relates to the construction of metal wheels and more particularly to those in which the rim and spokes are of metal and the rim is supported upon the ends of the spokes.

The object of my invention is to produce a wheel of'great strength, lightness and ease of manufacture by utilizing metal bars of the form known commercially as angle bars, to whichend my invention consists in the construction and details of construction hereinafter more particularly described and then specified in the claims.

Fig. 1 is a rear'elevation of a wheel embodying my invention.

Fig. 2 is a vertical cross-section through the same on the line 2-2 Fig. 1.

Fig. 3 is a rear elevation of a modified structure embodying the invention and Fig. 4 is a vertical cross-section on the line 1-4 Fig. 3.

Fig. 5 is a cross-section through the form of angle bar employed.

Fig. 6 is a cross-section through one of the spokes.

1 indicates the spokes and 2 the rim of the wheel. The spokes are assembled and secured together in the hub structure in any desired manner but preferably in the manner to be presently described. Each spoke 1 embraces two angle bars of the form illustrated in Fig. 5, said bars being assembled and secured together with the arms 1, 1 presented to one face of the wheel and appearing as one of the spokes of the finished wheel while the two other arms 1 he flat against one another and being properly secured together as by spot welding, constitute together a strengthening rib or flangeon the rear of the spoke resisting distortion or bending of the spokes in a plane transverse to the general plane of the wheel.

In constructing the wheel I prefer to take a suitable length of angle bar and bend the same into general U form with the legs of the U brought together in the hub structure as illustrated in Fig. 1 of the drawing, or

' METAL WHEEL.

Specification of Letters Patent. Patented Aug. 22, 1922.

1921. Serial No. 465,869.

i spread apart as illustrated in Fig. 3 of the drawing. In the one case, as illustrated in Fig. 1, the bases of the Us are assembled as the circumference or run of the wheel to re ceive, preferably a suitable out-er rim 3..

Also, and as clearly shown, the Us are as-' sembled with the legs of contiguous Us placed together so that each spoke comprises legs of two of the Us, the remaining legs of which enter into the construction of the spokes to either side thereof. Suitable means may be employed for tying the rim 3 to the angle bar as for instance spot welding.

In the hub structure the arms 1 forming together the reinforcing ribs of each spoke are located in slots cut into one edge of an annular hub shell 4 which in cross-sectional form, is also like an angle bar, one arm being horizontal and slit inwardly from its one edge while the other arm stands verti- 1 cally in the finished wheel and is engaged by one of the hub flanges or plates 5. The opposite hub plate or flange 5 engages the faces 1' of each spoke, the whole being suitably clamped together by means of the bolts 6 as indicated to complete the hub structure, wherein the spokes are suitably anchored against circumferential or lateral displacemcnt. Each spoke member may, if desired,

have its arms 1 or part constituting the reinforcing rib tapered as illustrated in the cross-section between the hub and base of the U to add to the appearance and lightness of the wheel. In the hub the ends of the arms or members of the bars presented as the face of the spokes are tapered as shown so that, when assembled in the hub structure, they will be keyed into one another and form a practically continuous hub .plate engaged by the hub flange 5 thereby adding to the strength of the hub structure.

In the modification of my invention illustrated in Fig. 8 lengths of angle bars are bent to U form but the legs of the Us radiate and the bases of the Us are assembled in the hub structure. The legs terminate in the rim of the wheel, which rim is preferably a circular angle bar 3 against one arm of which, constituting the vertical arm, the faces of the angle bars constituting the spokes are seated, being secured thereto in any desired way. The horizontal arm of the angle bar rim engages the ends of the spokes. In the hub structure the bases of the U bars of which the spokes are formed are seated upon a suitablehub box, as shown, and are" fastened inplacethereon by'being clamped between hub plates or flanges 5, which fastening bolts 6 pass. i What I claim as my invention is 1. In a metal wheel, wheel spokes consisting'eachof two angle bars, two arms of, vwhich constitute together the face of the spoke while the two remaining arms lie against one another face to face 1n a plane transverse to the .plane'of' the wheel and constitute a compound strengthening rib for the spoke, resist ng dlstortlon or bending in Z sisting of lengths of angle barbent to genstrengthening rib of each spoke consists of' a plane transverse-to the plane of the wheel.

2. In a metal wheel, aspoke structure coneral U form, with the arms of the U brought together ini the spoke structure while the I bases of the us receive and support the rim,-, the Us being assembledso that the face of each spoke is composed of two bars and the the two other arms of the two bars engaging one another face to face in and fastened together so that the plane of both arms will lie in a plane transverse to the general plane of I the wheel.

fas

" 3. In a metal vwheel, the combination with U-shaped lengths of angle bar assembled so that the face ofeach spoke will consist of two'arms of contiguous Us each reinforced by a rib the faces of which arms are presented as sides of the spokes while the remainingtwo armsare fastened together face to face and extend transversely to the plane of the wheel to constitute a reinforcing rib resisting distortion transversely to the plane through I of the wheel, a rim secured tothe bases of the Us, a slotted hub shell in the slots of which thereinforcing ribs each consisting of two arms fastened together'are received and means for securlng the freeends of the Us in the hub structure.

4. In a metal wheel, a spoke structure consisting of lengths ofangle bar bent to U form and having the Us assembled with the arms of neighboring Us in contact and radiating to the circumference of the wheel and a rim of angle form cross-section,- one ofthe arms of the angle engaging the ends of the spokes and the other arni'b'eing se-j cured m vertical position aga nst arms of the angle bars forming thespokes and-having said arms presented to the faces of the wheel, the remaining arms of said angle bars being secured together face to face withthe plane of each arm transverse to the plane of the wheel to constitute a ribresisting bending of the spoke transversely.

5. A metal wheel thespokes of. which conbled in contact, each spoke presenting a face York and State of NewYork this 28th day of April, A. D. 1921.

' MAURICE LACHMAN.

G0 sist of angle bars bent to U form and assern- 

